First, pull the red tape (pull ribon) on the left and right to expand the thickness. If there is no place to hang it, please take it with you by an adult. Product material and size: Paper: Specifications: Diameter: 17.7 inches (45 cm), Thickness: 3.9 inches (10 cm); Weight: 9.7 - 9.8 oz (272 - 282 g); Product is made of paper, environmentally friendly and safe. (Where to Use) Enjoy it at home, at park, campsite, etc. [Warranty] All products are inspected before shipping, but due to overseas products, they are not made with a neat design like made in Japan. Please be aware that there may be defects before purchasing. If there is any defects, we will replace it with a free replacement for a good product within 30 days **period after shipment. No hassle. Its that simple!